Physics – Condensed Matter – Materials Science
Scientific paper
2007-04-20
Physics
Condensed Matter
Materials Science
12 pages in the body and 5 figures
Scientific paper
Single crystal samples of L-leucine, C6H13NO2, a fundamental aliphatic amino acid of the human body, have been studied by Raman spectroscopy at temperatures from 300 to 430 K over the spectral range from 50 to 3100 cm-1. A tentative assignment of all bands is given. For high temperatures, several modifications on the Raman spectra were observed at about 353 K, giving evidence that the L-leucine crystal undergoes a structural phase transition.
Facanha Filho P. F.
Filho Josue Mendes
Freire Paulo T. C.
Lima K. C. V.
Melo F. E. A.
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